21128430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{704281}}^1$

素因数の和:704291

約数の個数: 16

約数和(自身を含む): 50708304

約数和(自身を除く): 29579874

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 704281, 1408562, 2112843, 3521405, 4225686, 7042810, 10564215, 21128430]

約数ペア:

[(1, 21128430), (2, 10564215), (3, 7042810), (5, 4225686), (6, 3521405), (10, 2112843), (15, 1408562), (30, 704281)]